CVE-2026-78333

HIGHPre-NVD 8.88.8
EchelonGraph scoreMEDIUM confidence

“—” beside the score: it is equal to the CVSS score beside it.

Score 8.8 from GitHub Security Advisory (severity: HIGH) published 2026-08-27. CISA-ADP (Vulnrichment) CVSS v3.1 baseline 8.8; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: CISA-ADP (Vulnrichment) CVSS v3.1, EPSS, GitHub Security Advisory
Trending — 3 sources updated this week
8.8EG
EchelonGraph verdictPlan mitigationRemediate within your standard update timelines (the SSVC decision on this page).
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS PROB: 0.5%CVSS: 8.8Exploit: None knownExposed services: Not assessed

No fix is confirmed yet — apply a workaround or compensating control (WAF / firewall / segmentation) and watch for the fix.

The CVE record's CNA (WPScan) lists 12 Step Meeting List versions 3.17 up to but not including 3.19.17 as affected. No release containing a fix is confirmed on record.

The 12 Step Meeting List WordPress plugin before 3.19.17 does not sanitise and escape a value submitted by unauthenticated users before storing it in its activity log and outputting it back in an admin area page, leading to a Stored Cross-Site Scripting issue which could be used against high privilege users such as admin.

CVSS v3
8.8
EG Score
8.8HIGHmedium confidence
EG Risk
40
EG Risk 40/100

EG Risk is EchelonGraph's 0–100 priority score: it fuses intrinsic severity with real-world exploitation and automatability so you can rank equal-severity CVEs and fix the most dangerous first. Higher = act sooner. Distinct from the 0–10 EG Score (severity).

How it’s computed (value × EchelonGraph’s weight)
Severity88% × 45%
The EG Score, 8.8 of 10.
Exploitation0.5% × 40%
FIRST EPSS: the 30-day exploitation probability when EchelonGraph scored this CVE.
Automatability0% × 15%
CISA's SSVC Automatable value: no (Vulnrichment).
SSVC (CISA's decision table, applied by EchelonGraph): Track at low or medium mission impact; Track* at high (mission-essential systems).
Exploitation none (CISA Vulnrichment) · Automatable no (CISA Vulnrichment) · Technical impact total (CISA Vulnrichment). All three are CISA's SSVC values (Vulnrichment). EchelonGraph applied CISA's decision table to them; CISA publishes SSVC inputs and the table, not a decision for each CVE.
Action: No fix is confirmed yet. Restrict network exposure of the affected system or apply the vendor's mitigation within your standard update timelines, and watch the vendor's advisory for the fix.
EPSS PROB
0.5%
EPSS %ILE
41st
KEV
Not listed

SSVC (CISA's decision table, applied by EchelonGraph)Track at low or medium mission impact; Track* at high (mission-essential systems).

No fix is confirmed yet. Restrict network exposure of the affected system or apply the vendor's mitigation within your standard update timelines, and watch the vendor's advisory for the fix.

Exploitation none (CISA Vulnrichment) · Automatable no (CISA Vulnrichment) · Technical impact total (CISA Vulnrichment). All three are CISA's SSVC values (Vulnrichment). EchelonGraph applied CISA's decision table to them; CISA publishes SSVC inputs and the table, not a decision for each CVE. Mission impact is CISA's Mission & Well-being decision point, and only you can judge it. CISA's table makes it high when Mission Prevalence is Essential — the vulnerable component "directly provides capabilities that constitute at least one MEF for at least one entity" (MEF: mission essential function) — or when Public Well-Being Impact is Irreversible: "multiple fatalities are likely", the cyber-physical system "is likely lost or destroyed", "extreme or serious externalities" are imposed on other parties, or social systems such as elections or the financial grid "are destabilized and potentially collapse". CISA's decision table

BOD 26-04 (CISA's remediation timeline, Table 1)14 days if the affected system is publicly exposed; Fix on system upgrade if it is not.

In CISA KEV no (CISA's KEV catalog) · Automatable no (CISA Vulnrichment) · Technical impact total (CISA Vulnrichment). Whether your system is publicly exposed is yours to answer. BOD 26-04 binds US Federal Civilian Executive Branch agencies; for anyone else it is CISA's published timeline, a reference rather than an obligation. The directive · how EchelonGraph applies it

Published

August 27, 2026

Last Modified

August 28, 2026

Advisory Details (1)

Auto-updated Aug 27, 2026
No fix on record yet.
Web page

12 Step Meeting List 3.17 – 3.19.16 – Unauthenticated Stored XSS via Geocode Event Log | CVE 2026-78333 | Plugin Vulnerabilities

https://wpscan.com/vulnerability/27de9242-d60e-42e8-a3a5-e355bfc00393/

Vendor Advisories for CVE-2026-78333(1)

These vendors published their own advisory mentioning this CVE — often with vendor-specific remediation steps + affected product lists not in NVD.

Weakness Classification(1)

MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.

Data Freshness Timeline

(refreshed 19× in last 7d / 104× in last 30d)

Each row is a time one of our pipelines fetched, updated or re-scored this CVE. For example, "NVD update" means NVD published or revised its analysis for this CVE; "MITRE cvelistV5" means we ingested or refreshed it from the CNA feed. An arrow marks a change the record states ("CVSS v3 → 9.1"); EPSS and GHSA rows show the values recorded at that time, not what changed (EPSS values are rounded; hover one for the exact figures). Most recent first.

Showing the most recent 100 of 181 refreshes on record for this CVE.

A repeat, a row identical to one the same pipeline wrote less than 10 seconds earlier, is not a separate refresh and is not counted. None are among the latest 100 rows. The 81 oldest rows on record are not shown and were not checked, so the counts can still include repeats.

  1. 2026-10-13 16:35 UTCEPSS rescoreEPSS 0.5% · 41st percentile
  2. 2026-10-13 06:49 UTCEG score recompute
  3. 2026-10-13 06:49 UTCGHSA enrichmentGHSA-w97m-rc73-v4hm · GitHub severity HIGH · GitHub CVSS 8.8
  4. 2026-10-12 16:35 UTCEPSS rescoreEPSS 0.5% · 41st percentile
  5. 2026-10-12 15:36 UTCEG score recompute
  6. 2026-10-11 19:22 UTCEG score recompute
  7. 2026-10-11 16:38 UTCEG score recompute
  8. 2026-10-11 13:57 UTCEG score recompute
  9. 2026-10-11 13:49 UTCEPSS rescoreEPSS 0.5% · 41st percentile
  10. 2026-10-10 20:00 UTCEPSS rescoreEPSS 0.5% · 41st percentile
  11. 2026-10-10 05:22 UTCEG score recompute
  12. 2026-10-10 05:22 UTCGHSA enrichmentGHSA-w97m-rc73-v4hm · GitHub severity HIGH · GitHub CVSS 8.8
  13. 2026-10-09 20:07 UTCEPSS rescoreEPSS 0.5% · 41st percentile
  14. 2026-10-09 03:11 UTCEG score recompute
  15. 2026-10-09 03:11 UTCGHSA enrichmentGHSA-w97m-rc73-v4hm · GitHub severity HIGH · GitHub CVSS 8.8
  16. 2026-10-08 17:13 UTCEPSS rescoreEPSS 0.5% · 41st percentile
  17. 2026-10-08 01:23 UTCEG score recompute
  18. 2026-10-08 01:23 UTCGHSA enrichmentGHSA-w97m-rc73-v4hm · GitHub severity HIGH · GitHub CVSS 8.8
  19. 2026-10-07 23:48 UTCEPSS rescoreEPSS 0.5% · 41st percentile
  20. 2026-10-07 07:45 UTCGHSA enrichmentGHSA-w97m-rc73-v4hm · GitHub severity HIGH · GitHub CVSS 8.8
  21. 2026-10-06 19:40 UTCEG score recompute
  22. 2026-10-06 19:40 UTCGHSA enrichmentGHSA-w97m-rc73-v4hm · GitHub severity HIGH · GitHub CVSS 8.8
  23. 2026-10-06 15:18 UTCEPSS rescoreEPSS 0.5% · 41st percentile
  24. 2026-10-06 07:34 UTCEG score recompute
  25. 2026-10-06 07:34 UTCGHSA enrichmentGHSA-w97m-rc73-v4hm · GitHub severity HIGH · GitHub CVSS 8.8
Show 75 more
  1. 2026-10-05 17:43 UTCEPSS rescoreEPSS 0.5% · 41st percentile
  2. 2026-10-05 16:53 UTCGHSA enrichmentGHSA-w97m-rc73-v4hm · GitHub severity HIGH · GitHub CVSS 8.8
  3. 2026-10-05 03:43 UTCEG score recompute
  4. 2026-10-05 03:43 UTCGHSA enrichmentGHSA-w97m-rc73-v4hm · GitHub severity HIGH · GitHub CVSS 8.8
  5. 2026-10-04 23:22 UTCEPSS rescoreEPSS 0.5% · 40th percentile
  6. 2026-10-04 15:34 UTCGHSA enrichmentGHSA-w97m-rc73-v4hm · GitHub severity HIGH · GitHub CVSS 8.8
  7. 2026-10-04 03:21 UTCGHSA enrichmentGHSA-w97m-rc73-v4hm · GitHub severity HIGH · GitHub CVSS 8.8
  8. 2026-10-03 15:17 UTCEG score recompute
  9. 2026-10-03 15:16 UTCGHSA enrichmentGHSA-w97m-rc73-v4hm · GitHub severity HIGH · GitHub CVSS 8.8
  10. 2026-10-03 14:26 UTCEPSS rescoreEPSS 0.5% · 40th percentile
  11. 2026-10-02 20:57 UTCEG score recompute
  12. 2026-10-02 20:57 UTCGHSA enrichmentGHSA-w97m-rc73-v4hm · GitHub severity HIGH · GitHub CVSS 8.8
  13. 2026-10-02 08:16 UTCGHSA enrichmentGHSA-w97m-rc73-v4hm · GitHub severity HIGH · GitHub CVSS 8.8
  14. 2026-10-01 20:11 UTCEG score recompute
  15. 2026-10-01 20:11 UTCGHSA enrichmentGHSA-w97m-rc73-v4hm · GitHub severity HIGH · GitHub CVSS 8.8
  16. 2026-10-01 19:50 UTCEPSS rescoreEPSS 0.5% · 40th percentile
  17. 2026-10-01 08:00 UTCGHSA enrichmentGHSA-w97m-rc73-v4hm · GitHub severity HIGH · GitHub CVSS 8.8
  18. 2026-09-30 19:56 UTCEG score recompute
  19. 2026-09-30 19:56 UTCGHSA enrichmentGHSA-w97m-rc73-v4hm · GitHub severity HIGH · GitHub CVSS 8.8
  20. 2026-09-30 05:08 UTCEG score recompute
  21. 2026-09-30 05:08 UTCGHSA enrichmentGHSA-w97m-rc73-v4hm · GitHub severity HIGH · GitHub CVSS 8.8
  22. 2026-09-29 15:24 UTCEPSS rescoreEPSS 0.5% · 40th percentile
  23. 2026-09-29 12:19 UTCEG score recompute
  24. 2026-09-29 12:19 UTCGHSA enrichmentGHSA-w97m-rc73-v4hm · GitHub severity HIGH · GitHub CVSS 8.8
  25. 2026-09-28 21:17 UTCEG score recompute
  26. 2026-09-28 21:17 UTCGHSA enrichmentGHSA-w97m-rc73-v4hm · GitHub severity HIGH · GitHub CVSS 8.8
  27. 2026-09-28 13:52 UTCEPSS rescoreEPSS 0.5% · 40th percentile
  28. 2026-09-28 07:45 UTCGHSA enrichmentGHSA-w97m-rc73-v4hm · GitHub severity HIGH · GitHub CVSS 8.8
  29. 2026-09-27 19:42 UTCEG score recompute
  30. 2026-09-27 19:41 UTCGHSA enrichmentGHSA-w97m-rc73-v4hm · GitHub severity HIGH · GitHub CVSS 8.8
  31. 2026-09-27 13:48 UTCEPSS rescoreEPSS 0.5% · 40th percentile
  32. 2026-09-27 07:35 UTCGHSA enrichmentGHSA-w97m-rc73-v4hm · GitHub severity HIGH · GitHub CVSS 8.8
  33. 2026-09-26 19:22 UTCEG score recompute
  34. 2026-09-26 19:22 UTCGHSA enrichmentGHSA-w97m-rc73-v4hm · GitHub severity HIGH · GitHub CVSS 8.8
  35. 2026-09-26 15:59 UTCEPSS rescoreEPSS 0.5% · 40th percentile
  36. 2026-09-26 00:28 UTCEPSS rescoreEPSS 0.5% · 40th percentile
  37. 2026-09-25 15:46 UTCGHSA enrichmentGHSA-w97m-rc73-v4hm · GitHub severity HIGH · GitHub CVSS 8.8
  38. 2026-09-25 03:42 UTCGHSA enrichmentGHSA-w97m-rc73-v4hm · GitHub severity HIGH · GitHub CVSS 8.8
  39. 2026-09-24 15:38 UTCEG score recompute
  40. 2026-09-24 15:38 UTCGHSA enrichmentGHSA-w97m-rc73-v4hm · GitHub severity HIGH · GitHub CVSS 8.8
  41. 2026-09-24 14:04 UTCEPSS rescoreEPSS 0.5% · 40th percentile
  42. 2026-09-24 03:34 UTCEG score recompute
  43. 2026-09-24 03:34 UTCGHSA enrichmentGHSA-w97m-rc73-v4hm · GitHub severity HIGH · GitHub CVSS 8.8
  44. 2026-09-23 17:54 UTCEPSS rescoreEPSS 0.3% · 20th percentile
  45. 2026-09-23 15:30 UTCGHSA enrichmentGHSA-w97m-rc73-v4hm · GitHub severity HIGH · GitHub CVSS 8.8
  46. 2026-09-23 03:26 UTCEG score recompute
  47. 2026-09-23 03:26 UTCGHSA enrichmentGHSA-w97m-rc73-v4hm · GitHub severity HIGH · GitHub CVSS 8.8
  48. 2026-09-22 16:01 UTCEPSS rescoreEPSS 0.3% · 20th percentile
  49. 2026-09-22 15:22 UTCGHSA enrichmentGHSA-w97m-rc73-v4hm · GitHub severity HIGH · GitHub CVSS 8.8
  50. 2026-09-22 03:16 UTCEG score recompute
  51. 2026-09-22 03:16 UTCGHSA enrichmentGHSA-w97m-rc73-v4hm · GitHub severity HIGH · GitHub CVSS 8.8
  52. 2026-09-21 21:09 UTCEPSS rescoreEPSS 0.3% · 20th percentile
  53. 2026-09-21 15:11 UTCGHSA enrichmentGHSA-w97m-rc73-v4hm · GitHub severity HIGH · GitHub CVSS 8.8
  54. 2026-09-21 02:49 UTCEG score recompute
  55. 2026-09-21 02:49 UTCGHSA enrichmentGHSA-w97m-rc73-v4hm · GitHub severity HIGH · GitHub CVSS 8.8
  56. 2026-09-20 20:16 UTCEPSS rescoreEPSS 0.3% · 20th percentile
  57. 2026-09-20 14:45 UTCGHSA enrichmentGHSA-w97m-rc73-v4hm · GitHub severity HIGH · GitHub CVSS 8.8
  58. 2026-09-20 02:42 UTCEG score recompute
  59. 2026-09-20 02:41 UTCGHSA enrichmentGHSA-w97m-rc73-v4hm · GitHub severity HIGH · GitHub CVSS 8.8
  60. 2026-09-19 14:37 UTCGHSA enrichmentGHSA-w97m-rc73-v4hm · GitHub severity HIGH · GitHub CVSS 8.8
  61. 2026-09-19 02:33 UTCEG score recompute
  62. 2026-09-19 02:33 UTCGHSA enrichmentGHSA-w97m-rc73-v4hm · GitHub severity HIGH · GitHub CVSS 8.8
  63. 2026-09-18 19:28 UTCEPSS rescoreEPSS 0.3% · 20th percentile
  64. 2026-09-18 14:29 UTCGHSA enrichmentGHSA-w97m-rc73-v4hm · GitHub severity HIGH · GitHub CVSS 8.8
  65. 2026-09-18 02:25 UTCEG score recompute
  66. 2026-09-18 02:25 UTCGHSA enrichmentGHSA-w97m-rc73-v4hm · GitHub severity HIGH · GitHub CVSS 8.8
  67. 2026-09-17 14:21 UTCGHSA enrichmentGHSA-w97m-rc73-v4hm · GitHub severity HIGH · GitHub CVSS 8.8
  68. 2026-09-17 02:12 UTCEG score recompute
  69. 2026-09-17 02:12 UTCGHSA enrichmentGHSA-w97m-rc73-v4hm · GitHub severity HIGH · GitHub CVSS 8.8
  70. 2026-09-16 14:08 UTCEPSS rescoreEPSS 0.3% · 20th percentile
  71. 2026-09-16 14:08 UTCEG score recompute
  72. 2026-09-16 14:08 UTCGHSA enrichmentGHSA-w97m-rc73-v4hm · GitHub severity HIGH · GitHub CVSS 8.8
  73. 2026-09-16 05:15 UTCEPSS rescoreEPSS 0.3% · 20th percentile
  74. 2026-09-16 01:56 UTCGHSA enrichmentGHSA-w97m-rc73-v4hm · GitHub severity HIGH · GitHub CVSS 8.8
  75. 2026-09-15 13:52 UTCEG score recompute

Related CVEs(same CWE)

Frequently asked(5)

What is CVE-2026-78333?
CVE-2026-78333 is a high-severity vulnerability; its CVE record was published on August 27, 2026. The 12 Step Meeting List WordPress plugin before 3.19.17 does not sanitise and escape a value submitted by unauthenticated users before storing it in its activity log and outputting it back in an admin area page, leading to a Stored Cross-Site Scripting issue which could be used against high…
When was the CVE record for CVE-2026-78333 published?
The CVE record for CVE-2026-78333 was published on August 27, 2026. That is the record's publication date; the vulnerability itself may have been made public earlier. EchelonGraph's copy of the record carries a last-modified date of August 28, 2026; the record at its source may have been updated since.
Is CVE-2026-78333 actively exploited?
CVE-2026-78333 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 0.5% probability of exploitation in the next 30 days (41st percentile of EPSS-scored CVEs).
What is the CVSS score of CVE-2026-78333?
CVE-2026-78333 has a CVSS v3.1 base score of 8.8 (CISA-ADP / Vulnrichment enrichment; NVD's own analysis pending).
How do I remediate CVE-2026-78333?
No fix for CVE-2026-78333 is confirmed yet. Until one is published, restrict network exposure of the affected system or apply the vendor's mitigation — for example, keep it off the internet or limit it to trusted networks — and watch the vendor's advisory for the fix. The CVE record's CNA (WPScan) lists 12 Step Meeting List versions 3.17 up to but not including 3.19.17 as affected. No release containing a fix is confirmed on record. The vendor advisories EchelonGraph has for CVE-2026-78333 are linked in the Vendor Advisories panel on this page.

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